Im 13 and im dying how to tel my parents?

well I've been having some weird headaches, so I looked online and did some research on cancer. Just as thought, I had the exact same symptoms. So I knew what I had to do, I went to the hospital and got my self tested. I was scared and nervous and as i thought it was cancer. I'm literally crying right now. When I arrived back home, I couldn't do anything but cry. I actually thought about killing myself right there because I don't want to tell my parents. I know I have to but they already have so much going on with their lives an I don't want to bring more bad news.